Description and Use
"A master switch to toggle on/off contextual tools for the page"
-Textbook
When and why is it used:
"When the actions are not the main focus and you want to reduce visual noise"
-Textbook
2 Best Practices:
  1. "Make the activation and deactivation of the edit mode as symmetrical as possible"
  2. "Keep the transition between display and edit as seamless as possible to provide a 'soft mode' for editing"

Examples